abrasive slurry of corundum
Al 2O 3 corundum porcelain
artificial corundum
人造金刚砂
人造刚石
强子螺旋度守恒（HHC）
人造刚玉
Bauxite based electro melted corundum
Bauxite based electro-fused zirconia corundum
Bauxite-based fused corundum-zirconia
blue corundum resin cutting grinding wheel
brown corundum abrasive
ceramic corundum abrasives
Chrome oxide-corundum-zirconia brick
Chrome-containing corundum castables
Chrome-corundum material